Lubricant and fuel pump



Nov. 5, 1929. `A. FRlsc-H 1,734,721

LUBRICANT AND FUEL PUMP Filed Dec. 9, 1927 J5/9g. if .3.

ll'lHll m E l lll ' v "20 driving shaft ofthe pump.

I i T135 `Vofthe parts 'being in section.

Patented News, ieee U' Y l,?34,72l

AUGUST Faison, oFnnBs'rEIN, sm. GALLEN, SWITZERLAND 1 LUBBICANT ANL FUEL PUMP Application l'ed December 9, 1927, Serial No. 238,848, and in Switzerland February 12, 192.7.v

vThe present invention relates toa pump fram-e3, to the pump cylinder 4. The latter which is adaptedfto convey lubricant to a is provided with a suction valve extension 5 A'bearing or fuel into a cylinder.A Y which, together with a stationary seat 6 in The invention relates particularly to pumps the ring 29, forms an inlet valve. The Vdriv- 5 ofthe .type *inwhich a reciprocating piston' ing disc 11 mounted adjacent the eccentric 9 55 is provided 4in a. cylinder, which latter co-v and loosely rotatable thereon isfdriven by Yoperates with suction and ejection openings. the pin 12 of the. eccentric 9, engaging with y The object of the invention is to provide a groove 13 of the disc 11. Theeccentric an improved pump which independently of 9 raises and lowers the frame 7 guided in the 10 the viscosity of theliquid delivers a predeguides 18,19 and carrying the piston 8. The G0 termined quantity of liquid at a high adlatter operates in the cylinder 4 actuated byY v justable pressure.` A'further object consists the disc 1l. @Into theframe 7,is screwed a in making the quantity delivered always aclifting screw 10 having' a square portion 14 curately in accordance with the number of slidably seated in a square'opening of an ad- 7115 strokes of the piston. justing sleeve 15 with head 1.6. .This is loose- 65 A still further object is to provide a pump ly rotatable on an extension of the pump Vwhich delivers a predetermined quantity of casing 29 provided with a scale 17. The seat liquid at` a high adjustable pressure `inde- 6 is provided on a casing-20, rigidly mounted endentlylofthe direction'of rotation of the jin the pumpl casing 29, and provided with a seat for a non-return conical valve 21. To 70 Y WithV the above and otherrv objects in view the casing 29 is connected the pressure pipe 27 the invention residesin certain novel features by which the oil can be conducted to the point rof construction and in the'com'bination and of use. A arrangement of' parts as hereinafter more The method of operation is as follows :e

' '25'u11y described, Y' t Having reached the'lower dead point posi- In the drawing: tion Fig; f1, the hump 22-of the driving disc rFig.' 1 shows a cross section of the pump-11 pushes the cylinder. 4 rdownwards andv opens a comparatively very large annular mounted inan -oil reservoir. l

" section of the suction valve 6, 5 for the whole "Fig 2 is an axial section.

2 130 Fig. 3 showsacross sectionof the pump duration ofthesuction stroke of the piston 80 v -vwhilst delivering oil. `8.V The liquid is drawn in in the direction of -Fi'gf4 showsa cross 4section of the pumpand the Varrow'. On completion of Ythe suction Y v shows the drivingmembers. lstroke vthehump 22 on the drivingl disc 11. F'gl is a side elevation ofthe pump, some presses the driving frame 3 with the cylinder l 4'upwardly, closes the vsuction port at A5,5, the.. 85 VTThe pump'illustrated-'s providedwithring piston 8 :isi moved downwar'dlyby thereo- Y elements, 29, each of which is Vprovided with centric 9Yand the liquid-is forced throu-ghthe 'pump and which,itogether with two capvalve 2-1 into'the pipef 27 to the point where' v'shaped ends form a closed-oil supply tank. the liquid is to used. ."The screw 10 is ad- Y I @'40 In the ends is mounted a shaft 1 serving to justed by adjustment against thescale 17 yand 90 drive the pumps of allthe elements and which more or les's'play is given to t-he eccentric 9 may be driven by a wormand worm wheel in the vcross head 7` so fthat then maximum A (Figs, 4v'and 5). u A Y piston stroke is reduced by the amount of O nthev driving shaftjl there is mounted play. l

l 45 foreach pump a lifting eccentric 9 andfon .he cylinder control-.continues to loperate 95 this is rotatably mounteda'y driving disc 11. irrespective of the strokeadjustment of the When rotated the V(girivingdis'c 1v1 moves a piston and thus ensures the supply of the driving frame 3 Vguided in a straight line in adjusted Vquantity. `In order vthat the suc-` stationary guides 1,8,.19 of Vthe' element 29. 'tion valve seat 5, 6 mayv still be pressed'up 59 A'resiglientlmember (spring) 2 connects the vevenin.thecaseof wear ofthe actuatingl cam" f l' fluid to said chamber when the latter is in a predetermined position, means for reciproeating said cylinder, an eccentric connected to said last mentioned means, a frame connected to saidpiston and encircling saidv eccentric, and means for varying the lost motion between said frame and said eccentric to control the length of stroke'of said piston.

10. A pump including a supply chamber having a cylindrical peripheral wall, a cylinder mounted to reciprocate substantially radially of said chamber and disposed therein and having a part serving as a valve to control communication between said cylinder and said chamber, a delivery conduit connected to said wall, a valve controlling communication between said cylinder and said conduit, a pair or reciprocatory members, a piston within said cylinder, a pair of reciprocatory parts withinsaid chamber, one con-l nected to said piston and the other having yielding connection to said cylinder, and a shaft having means for effecting reciprocation of said members.

11. A pump including a sup ly chamber having va cylindrical peripheral wall, a cylinder mounted to reciprocate substantially radially of vsaid chamber and disposed therein and having a part serving asa valve to control communication between said cylinder and said chamber, a` delivery conduit connected to said wall, a' valve controlling communication between said cylinder `and said conduit,

a pair of reciprocatory members, a bracket projecting inwardly Jfrom said wall, recipro- Acatory members guided by `said bracket, one

being connected to said piston and the other to saidcylinder, a shaft for effecting reciprocation of said members, 'and means carried by vsaid cylindrical wall for varying thestroke of said'piston.

testimony whereof I aiix mysignature.`

AUGUST FRISCH. 

